Skip to content
Electrical systemPart report

2021 Ford Mustang Mach E Electrical system Problems

Complaints
155about this part
Share
44%of 351 total for the year
Median mileage
30,696miles
Trend
RisingComplaints filed in the last 3 full calendar years are at least 25% higher than in the 3 years before.

NHTSA recorded 155 complaints about the electrical system of the 2021 Ford Mustang Mach E, 44% of the 351 complaints for this model year. Where a mileage was given, the median is 30,696 miles. 2 of these say a crash was involved and 1 a fire, according to the filers. 4 recall campaigns on record are filed under a similar system.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“As I was driving down the road (in motion / city street) at 30 miles per hour in my brand new (4 week old / 2200 miles) all electric Ford mach e, the display flashed multiple warning lights that came too quickly to decipher, and then the car went dead. I was able to pull off the road and come to a stop. At this point the car was completely dead. Even the hazard lights wouldn't work which made the situation dangerous since the cars behind me could not tell that there was a problem.”

NHTSA complaint #11415152, filed 2021-05, 2,200 miles

“My 2021 Mustang MachE experienced a failure of the relay which connects its high-voltage battery to the rest of the car. The car is an EV, and the result of this is that the drive-motor had no power, and the car would not move. I would like to ask, please, that all model years with this known-issue (HVBJB - high voltage battery junction box) be recalled.”

NHTSA complaint #11767362, filed 2026-09

“This is a safety issue. The front collision assist is not working. I have returned the car to the Ford Dealer (Biener Ford) several times but the dangerous issue persists. I'm not the only one. There are many complaints listed on the web and the Ford Mach E forum. Ford needs to recall their EV Ford Mach-E vehicles and fix this dangerous safety issue once and for all.”

NHTSA complaint #11740320, filed 2026-05

“My cameras will not work and the screen will be black. Anytime I reverse or come too close to an object the cameras will show, but since there is a problem with the camera wire the image is just a black screen. This is a serious safety issue that Ford has yet to address and I have notified them about it, with an image and video of the problem.”

NHTSA complaint #11640304, filed 2025-02

“Forward camera failure, will not reset, continues to come up since 2021 multiple times this vehicle has been in the shop for this repair now that the warranty is over it is not covered and is not getting fixed I cannot use my cruise control and it continues to come up on the dash. This needs to be repaired and no one wants to fix it”

NHTSA complaint #11613893, filed 2024-09

Related recalls

Related service bulletins

Electrical system: other model years

YearComplaintsShare of year
2025750%
20243267%
20235341%
20227755%
202115544%

Other parts of the 2021 Ford Mustang Mach E

Forward collision avoidance
106 complaintsTransmission and drivetrain
53 complaintsOther or unknown
50 complaintsFuel system
49 complaintsVehicle speed control
37 complaintsBrakes
32 complaintsLane departure
31 complaintsVisibility (wipers, defrost, mirrors)
20 complaintsEngine
17 complaintsSteering
15 complaintsBack-over prevention (rear camera)
8 complaintsBody and structure
7 complaints

← All problems reported for the 2021 Ford Mustang Mach E

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology